如果提供了错误的登录凭据,如何避免Android挂起httpsURLConnection.getInputStream()？

Question

如果在此处设置了身份验证凭据,如果提供的用户/密码正确,则一切正常,但如果它们不正确则会挂起.这不是服务器问题,我使用Curl和浏览器检查,不正确的凭据立即返回401:

    Authenticator.setDefault(new Authenticator() {
        protected PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication(user, password.toCharArray());
        }
    });

挂起的代码在这里,它挂起在这一行:in = new BufferedReader(new InputStreamReader(httpURLConn.getInputStream())); (没有例外,它只停留在这条线上)

    try {
        URL url = new URL(resourceUrl);
        HttpURLConnection httpURLConn = (HttpURLConnection) url.openConnection();
        String rawData = "";
        String currentLine = null;
        BufferedReader in = null;

        in = new BufferedReader(new InputStreamReader(httpURLConn.getInputStream()));
        while ((currentLine = in.readLine()) != null) {
            rawData = rawData.concat(currentLine);
        }
        in.close();
    } catch (UnknownHostException e) {
        Log.i(CLASS_NAME + "::" + METHOD_NAME
                , "An exception occured while reading data from remote host. httpURLConn.responseCode = " + httpURLConn.getResponseCode()
                + " / httpURLConn.responseMessage = " + httpURLConn.getResponseMessage(), e);
        throw new UnknownHostException();
    } catch (IOException e) {
        Log.i(CLASS_NAME + "::" + METHOD_NAME
                , "An exception occured while reading data from remote host. httpURLConn.responseCode = " + httpURLConn.getResponseCode()
                + " / httpURLConn.responseMessage = " + httpURLConn.getResponseMessage(), e);
        throw new IOException();
    }

Answer 1

服务器是否会保持连接处于活动状态（Keep-Alive 标头）？